Papermaking machinery



A. l.- BLACK PAPER MAKING MACHINERY June4, 1946.

Filed April 27, 1944 ,3 I it Zulu-B ur $155 7 INVENTOR. ALFRED I. BLACKATTORNEY Fatented June 4, 1946 UNH'TED' stares 2,401,503 ransom/[moMacmtnnv Alfred ll. Black, Hartford City, Ind asslg'nor to ll'sabellBlack, Hartford City, Ind.

Application April 27, 19%, Serial No. 533,035

This invention relates to improvements in drier apparatus. used inconnection with paper making plants, such an apparatus comprisinghorizontal rotatively driven steam heated cylindrical drier rollsarranged in staggered order and in successive tiers, the rolls of eachtier being journaled at their axles in suitable bearings providedtherefor in upright frame members.

Upon the surface portions of the rolls of one tier, and upon the surfaceportions of the rolls of the adjacent tier, travels (for the purpose ofdrying) the web of pulp (hereinafter referred to as the paper sheet)which is brought to the apparatus on a transport belt operated therefor,from the source of supply.

Arranged in connection with each of said drier rolls, at what may betermed its front or head end, is a grooved annular sheave which is ofdiameter substantially the same as that oi the roll. Running overthese-sheaves, one to the other, are endless ropes lying side by side,maintained at proper tension, and which function to eiiect the feedingto the initial drier roll of the first tier of rolls, the said papersheet. The said sheaves are required to operate at the same speed asthat of the rolls. Accordingly the grooves of the sheaves are ofsuitable depth so that the outer surfaces of the ropes may besubstantially flush with the periphcry of the roll. Driving relationbetween the roll and the sheave is in some instances established di- 4Claims. (lCl. 34-120) being adapted to be 2 manually actuated at timeduring the operating of the machine.

The aforenamed broadly stated object, as well aspther and more specificaims of the invention and which have to do with improvements inconstruction and arrangement leading to economy of manufacture andfacility of use, are accomplished by, and my invention is embodied inthe new construction, combination and arrangement of parts described inthe following specification and illustrated in the accompanying drawing.

The several parts of the invention are identified l t by suitablecharacters of reference applied to Bill rectly, and in other instancesis established indirectly, as by devices'lnterconnecting the roll andthe sheave, and which said devices are so arranged and are capable ofsuch control, that said driving relation maybe suspended.

Due to the severe conditions which are incident to the fumes, moistureof condensation, and to the heat of the rolls, and which cold conditionsare constantly present in manufacturing operations involving apparatusoi the above description, the ropes become prematurely impaired, andbreakage of same is the result. Attending such breakage is serious lossand damage becauseoi the impossibility of detaching the hrohenrope orropes and replacing same, without stopping the operation or them in thedifferent views in the drawing, in whichi Figure 1 i an elevationaldiagrammatic view of two sets of drier rolls, sameconstituting a portionof a drier apparatus of a, high speed paper making .machine comprisinga, number of such sets successively arranged, and to which saidapparatus my invention is applicable.

Figure 2 is an enlarged front view of one of the rolls of said setsremoved. a v

Figure 3 is a vertical central longitudinal cross section view taken onthebroken line fill-t. in the.

direction of arrow 3 in Figure 2.

Figure 4 is a top plan view taken in the direction of arrow d in Figure2, a portion of the sheave being broken away.

Figure 5 is a detailed elevational view of a drier roll with which isembodied as sheave of new construction, and certain new parts combinedwith said sheave and with'the drier roll, in accordance with myinvention. I

I Figure ii is a side view in the direction of arrow t in Figure 5, aportion of the sheave being broken away.

Figure 'l' is an enlarged detailed cross section view, taken on brokenline l-l in the direction of arrow l in Figure 5. r

Figure 6 is an enlarged detached frontal view of the locking deviceappearing in Figure 5. 1

Figure 9 isa view taken in the direction of arr'o'w ii in Figured.

the drier rolls and the associated portions of the manufacturing plant.

In the present invention my object is to provide an annular sheave andbearings therefor that are applicable to a conventional roll, saidbearings to support the sheave concentrically of and for rotativemovement synchronously with the roll, and a device secured to the rolland oper able to lock the sheave to the roll, and operable to unlock thesheave irom the roll, saiddcvice ltd Figure ill is a view taken in thedirection. oi arrow it, in Figure 8.

Figure 11 is an enlarged cross section view taken on th broken line H,in the direction of arrow it in Figure 5.

In the typical so or one: rolls. indicated in Figure 1, each of thedrier rolls A has its axleB journaledin a pillow block C which issupported by theupright member D of the machine frame.

Rigidly secured, suitably spaced threaded stems G protrude from th'ehead end H of each drier 3 roll, as indicated in Figures 2 and 3.Adjacent to each of said stems .G is a stud J. Annular sheave K hasperipheral groove L.

Each of similar, spaced, inwardly directed lugs M which are integralwith said sheave, is provided with a hole in which the said stem G isreceived; and is also provided with a hole in which the said stud J ireceived, when the said sheave is applied to position united with thehead end of the drier roll. By means of nuts N which are screwed home onthe stems G the said sheave is retained fixedly secured to the saiddrier roll.

The ropes O and P by which the paper sheet (not shown) is fed into thedrier rolls, as at F (see Figure 1), travel side by side in the groove Lof said sheaves, and over idlers Q, R, and S, and they are keptconstantly at tension by weighted or spring pressed idlers T-and U. Eachof the said rolls constitutes a chamber into which steam is supplied byconventional means (not shown). Driving power is supplied to gearing(not shown) connected with each roll at its rear end, to operate therolls in the direction indicated by the arrow in Figure 1.

The ropes, traveling as they do, in unison with the power propelleddrier rolls, it is obvious that a break or the rope results immediatelyin such derangement and tangle, that continued travel of the rope isliable to result in injury to the paper sheet. stoppage of the operationof the rolls therefore becomes necessary, and there follows adisturbance of the entire manufacturing operation.

The present embodiment of my invention is typical, and it is of form andconstruction applicable to drier apparatus of the kind above referredto. It consists of the several parts constructed, combined and arrangedas follows.

I provide similar spindles it spaced equidistant from each other, andequidistant from the axis of the drierroll. Each of said spindlesembodies a threaded shank which is provided with a securing nut l6, locknut H, and lock washer i8 whereby when the spindle is screwed into thethreaded hole provided therefor in the head H of the drier roll, and thenuts 58 and H are adjusted, the said spindle-will have been made secure.

The said spindles i5 may, as in the present instance, be secured in theholes from, which the stems G of the drier roll will have been removed.It will be understood that in such instance, the studs J of the drierroll will have been removed.

My new sheave consists of semicircular half sections 24 and 25, eachhavin peripheral groove 26 and integral inner rail 21. Each of the endsof these half sections embodies 2. lug 28, as indicated in Figure .11,and inFigure 5.

The faces of the opposed meeting half sections are machined, as also arethe lateral faces which are in registration with the rim portion of thehead of the drier roll. By binding means such as the bolts 29 at thesaid lugs 28, the said half sections are secured together, the rail 21of the sheave so formed being received in the grooves of the rollers 20that are journaled on said spindles l5, and are there retained as by capscrews 2|. Thus, thesheave while being retained in concentric relationto and in engagement with the above described, I provide means wherebyto conple one of the sheaves to, and whereby to uncouple. it from thedrier rollwith which it is associated, consisting of the parts asfollows. Se-

cured to the head H of one of the drier rolls is a head block 33provided with longitudinal guideway 34, said block being so positionedthat its said guideway is directed radially. A bolt 35 slidinglyretained in said guideway is provided at its rear end portion with anintegral lateral lug 31 of formation as indicated in Figure 10, andwhich seat 10 against which said lug will have bearing' (See Figure 8.)

A helical protractile spring 42 retained on said bolt is connected atits forward end, to said bolt. as by a cross pin 35, and its other endis secured, as by anchor screw 43 to the said head block. Anchor screw413 is set at such position that a torque urge is exerted against thebolt in the direction of arrow X indicated in Figure 9. At the same timethe said spring exerts an urge against the said bolt longitudinally, asindicated by arrow Y in Figure 10, so that the forward end of said boltis normally in engagementwith the recess 3! of the sheave, and which isthe status of the bolt after it will have been released from the fullyretracted and held position. The said sheave is thereby coupled to thehead H of the drier roll and it will rotate in unison with'th'e rotationof and by the power of said drier roll.

The said parts in their coupled status appear as in Figures 5 and 8. Tocause the bolt to become disengaged from the said sheave, thereby themovement of the sheave being arrested, a blow, as by a hammer or otherimplement applied by the operator, to thesaid lug 31 in directionopposite to'arrow Y (see Figure 8) frees the pawl from recess 3i and atthe same time dislodges the lug from its notch 38 whence by the torquestrain exerted by the spring 42, the lug is shifted rotatively and intothe ofise't 39 wherein it rests with its forward edge against the seat40. The

.bolt is now held in retracted position disengaged The conventionalsheaves (see Figure 2) are detached from all of the drier rolls and arediscarded, and the stems G and studs J are re-- moved. Then the spindles(see Figure 7) are secured in the head plate H of each of the said drierrolls. Next, the rollers 20 are disposed on the bosses of said spindlesand where they are retained in journaled status by the cap screws 2|.Sheave half sections 24 and 25 now are united, the annular rail 21 beingreceived in the grooves of the rollers, and the said half sections beingsecured together by the bolts 29.

Thus the sheave is concentric with, supported immediately adjacent to,and is rotatable independently of the rotative motion of the drier roll.Finally, on the head plate of one of the drier rolls selected, (the rollso selected being one that is nearer the floor, or one that is'nearerthe deck or platform (not shown) from which "he operator or supervisorof the machine has :hargel the head block 33 is secured in a fixed)OSi'biOIl related to the said sheave, as indicated to. Figure 5 andFigure 8. The bolt 35 will have ieen set at retracted position indicatedby the roken lines in Figure 8, and in which said posiion, the forwardend of the bolt is clear of the nternal face 23 of the sheave.

It will be understood that the bolt 35 will have Jeen set at theretracted position indicated by ;he broken lines in Figure 8 and clearof the inner face 23 of the sheave. The operator now moves she sheave toposition wherein recess 3| is in registration with the bolt. Then byapplying a hammer or wrench to the lug 37 thus moving said lug in thedirection of arrow X, the bolt is released from seat 40 and, by the urgeof the protractile spring 42 is shot forwardly, its end being receivedin the recess 3| 0f the sheave. The said sheave thereby is coupled withthat drier roll. At the same time the said sheave is capable of beingunlocked from said coupled engagement. To this feature further referencewill be made in my describing the operation of the invention.

The paper making machine having been thus equipped, the ropes of theusual length and arrangement may now be threaded on the drier rolls ofthe series, for example (as indicated in Figure 1) and on the idlerwheels over which thesaid ropes are carried and by which they aretensione'd for the purpose hereinbefore described.

In the operating of the machine equipped with my invention, the ropesare traveling as usual, the train of said rolls being rotativelyactuated by the power imparted by the coupled sheave. In case it mayappear that a rope is becoming impaired to the point of possiblefailure, or that it may have unraveled or broken; the operator, with ahammer or like suitable implement, strikes the lug by a blow applied indirection opposite to the arrow Y in Figure 8, the bolt thereby beingmoved to retracted position indicated by the broken lines and to thezone of the offset 39 whence, by the torque urge of spring 42 the saidlug becomes engaged with the seat 40 and the pawl is thereby helddisengaged from the recess 3| of the sheave. The said sheave thus havingbecome unlocked from its coupled status, it now, like the other sheavesof the, series will have become idle and, whereas the rotating of thedrier rolls continues without disturbance, all of the sheaves are atrest, and travel of the ropes will have ceased. Repairs and replacementof the rope or ropes may now be made.

When the rope or ropes will have been repaired and rearranged on thesheaves, and operations are to be resumed, the said bolt is dislodgedfrom the said seat 40, as by the use of a wrench or hammer whereupon, bythe protractive urge of at a higher plane would be so equipped. Also, itis practicable to have a series or succession of recesses 3 l, wherebythe coupling of the sheave would occur within a shorter period of travelof the drier r011.

It will be understood that the invention is subject to modification inits several features, within the scope of the invention as it is definedin the claims, without departing from the spirit or principle of theinvention.

What I claim as my invention is: 1. In a drier apparatus including drierrolls, spaced anti-friction bearings provided on the sheave end of eachof the drier'rolls, said bear ings of each roll being equidistant fromthe axis thereof, an annular carrier-sheave retained rohaving a laterallug at itsvrear end to engage said notch and to protrude beyond the sideface of said block, and'means to urge said bolt projectively and alsorotatively, whereby said bolt is pressed to engagement with said sheaveto hold the latter against rotative movement and when retracted by aforce externally applied to and dislodging the lug from said notch, isautomatically turned into said offset and is there held in retractedposition and disengaged from the sheave, and whereby when dislodged by aforce externally applied to the lug dislodging it from said offset, isautomatically projected to engagement with said sheave.

2. In a drier apparatus including drier rolls, spaced anti-frictionbearings provided on the sheave end of each of the drier rolls, saidbearings being equidistant from the axis of said roll,

an annular carrier-sheave retained :rotatively on said bearings, a headblock secured to one of the rolls and having a. guideway directed towardthe internal face of the sheave of that roll, said face having a recesstherein, and said guideway having a notch communicating with the rearend of said guideway and there being a transverse-offset thereat, a boltslidable in said guideway and having a lateral lug to engage said notchand to protrude beyond the side face of said block, and

a helical spring interconnecting the bolt and the block to urge saidbolt projectively and also rotatively.

3. In a paper drier machine including drier rolls, spaced spindlessecured to the sheave end of each of the drier rolls, a grooved rollerjournaled and retained against longitudinal movement on each spindle,adivided annular sheave having a recess in its outboard portion and beingprovided at its, internal face with an endless track rail, the halfsections of said sheave adapted to be reposed in engagement with thesaid rollers, means to secure said half sections in united relation, ahead block integrated with the head of one of the rolls and having aguideway directed radially of said roll and in line with the path of therecess of said sheave, ,a bolt slidingly retained in said guideway andhaving a laterallug at its rear end to abut against the rear end of saidblock and to protrude beyond the side face thereof, and a helical springinterconnecting the bolt and the block to urge said bolt projectivelyand rotatively.

4. In a drier apparatus of paper making machinery, including drierrolls, in combination with a sheave that is Journaled axially of andimmediately adjacent to the front end of each of said rolls. a deviceoperable to couple with and to uncouple from one of the rolls, thesheave thereof, said device consisting of a head block secured to saidroll and having a guideway directed toward the internal face of thesheave of that roll, there being a notch opening into the rear of saidblock and a transverse oilset thereat, a bolt loose in said guldeway andhaving a lateral lug to engage said notch and to protrude beyond theside lace of said block, and a helical spring interconnecting the boltand the block to urge the said bolt projectively and also rotatively.

man I. BLACK.

